التفاصيل البيبلوغرافية
| العنوان: |
Three d10 based metal-organic frameworks constructed from 2-(3',4'-dicarboxylphenoxy) isophthalic acid: Dual-functional luminescent sensors for Cu2+, Fe3+ cations and Aspartic acid. |
| المؤلفون: |
Du, Yi1 (AUTHOR), Yang, Hua-yong1 (AUTHOR), Shao, Cai-yun1 (AUTHOR), Liu, Jing-wen1 (AUTHOR), Yan, Yu-ting1 (AUTHOR), Yu, Lan-xing1 (AUTHOR), Zhu, Dan-qing1 (AUTHOR), Huang, Chao-nan1 (AUTHOR), Yang, Li-rong1 (AUTHOR) lirongyang@henu.edu.cn |
| المصدر: |
Journal of Solid State Chemistry. Sep2019, Vol. 277, p564-574. 11p. |
| مصطلحات موضوعية: |
*ASPARTIC acid, *METAL-organic frameworks, *CATIONS, *COVALENT bonds, *DETECTORS, *LUMINESCENCE, *HYDROGEN bonding |
| مستخلص: |
A series of d10 based metal-organic frameworks (MOFs), namely, [Cd 2 (dpc)(bipy)(H 2 O) 3 ] n (Ⅰ), {[Cd 2 (dpc)(bib)(H 2 O)]·H 2 O} n (Ⅱ), {[Cd 2 (dpc)(bitb) 1.5 (H 2 O) 2 ]·H 2 O} n (Ⅲ) (H 4 dpc = 2-(3′,4′-dicarboxylphenoxy)isophthalic acid, bipy = 4,4′-dipyridyl, bib = 1,4-bis (1-imidazolyl)benzene, bitb = 1,4-bis (imidazol-1-ylmethyl)benzene) have been designed and successfully synthesized using a flexible tetrabasic carboxylic acid along with three ancillary ligands under hydrothermal conditions, which exhibit structural diversities of targeted Cd-MOFs. Single-crystal X-ray diffraction analysis reveals that they contain building units of {CdN 1 O 6 } and {CdN 1 O 5 } (for I), {CdN 1 O 5 } (for II), as well as {CdN 2 O 4 } and {CdN 5 O 1 } (for Ⅲ), based on which to assemble microporous three-dimensional (3D) frameworks via covalent bonds and/or hydrogen bonds using multiple coordination modes of H 4 dpc ligand and auxiliary linkers. The solid-state luminescence performances of these Cd-MOFs were investigated at ambient temperature. Furthermore, luminescent sensing responses of Ⅰ-Ⅲ to amino acids and metal cations were systematically explored. Notably, Ⅰ and II may act as potential dual-functional luminescent sensors for Aspartic acid and Cu2+ cations as well as Aspartic acid and Fe3+ cations with high selectivity and sensitivity in aqueous solutions, respectively. The mechanisms of the quenching effect and sensing properties of the as-synthesized Cd-MOFs have also been discussed in this report. Three metal-organic frameworks (MOFs), namely, [Cd 2 (dpc)(bipy)(H 2 O) 3 ] n (I), {[Cd 2 (dpc)(bib)(H 2 O)]·H 2 O} n (II), {[Cd 2 (dpc)(bitb) 1.5 (H 2 O) 2 ]·H 2 O} n (III) have been solvothermally synthesized. The as-synthesized I and II may act as potential dual-functional luminescent sensors for Aspartic acid and Cu2+ cations as well as Aspartic acid and Fe3+ cations with high selectivity and sensitivity in aqueous solutions, respectively. Image 1 [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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